package com.sunshine.ssm.util;

import java.io.File;

/**
 * 删除某个目录及目录下的所有子目录和文件 <br />
 * java.io.File.delete() 只能删除"某个文件或者空目录"
 * @author WeiHong
 * @date 2018/11/7
 */
public class DeleteDirectory {


    /**
     * 递归删除目录下的所有文件及子目录下所有文件
     * @param dir 将要删除的文件目录
     * @return boolean Returns "true" if all deletions were successful.
     *                 If a deletion fails, the method stops attempting to
     *                 delete and returns "false".
     */
    public static boolean deleteDir(File dir) {
        if (dir.isDirectory()) {
            String[] children = dir.list();
            for (int i=0; i<children.length; i++) {
                boolean success = deleteDir(new File(dir, children[i]));
                if (!success) {
                    return false;
                }
            }
        }
        // 目录此时为空，可以删除
        return dir.delete();
    }
}
